How common is incomplete screening for fetal anatomy?
Incomplete visualization is common during screening ultrasonography for fetal anatomy, according to results of an analysis of more than 16,000 such examinations performed at a high-volume obstetric ultrasound center. The data, from a retrospective cohort study, appear in The Journal of Ultrasound in Medicine.

The authors reviewed data on screening anatomic sonograms performed on 16,300 women (mean age 30.8 ± 6.3 years) at 17 through 21 weeks’ gestation (mean gestational age 18.8 ± 1.0 weeks) with singleton pregnancies. The scans were done between January 2009 and December 2013. The goals of the analysis were threefold: (1) to determine whether visualization of anatomy had been incomplete at the initial exam; (2) check for a recommendation for a performance of repeat sonography in women whose initial screening ultrasound was incomplete but otherwise normal; and (3) determine whether, with repeat sonography, abnormal fetal anatomy had been identified in anatomic components that were previously incompletely visualized....

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